import Vue from 'vue'
import VueRouter from 'vue-router'
import Login from '../components/Login.vue'
import Home from '../components/Home.vue'
import Welcome from '../components/Welcome.vue'
import Users from '../components/user/Users.vue'
import Rights from '../components/power/Rights.vue'
import Roles from '../components/power/Roles.vue'

Vue.use(VueRouter)

  const routes = [
  { 
	  path: '/', 
	  redirect: '/login' ,
  },
  { 
	  path: '/login', 
	  component: Login ,
  },
  { 
	  path: '/home', 
	  component: Home, 
	  redirect: '/welcome',
	  children: 
		[
			{ path: '/welcome', component: Welcome },
	        { path: '/users', component: Users },
			{ path: '/rights', component: Rights },
			{ path: '/roles', component: Roles }
		],
  }
]

const router = new VueRouter({
  mode: 'history',
  base: process.env.BASE_URL,
  routes
})

// 挂载路由导航守卫// 为路由对象，添加 beforeEach 导航守卫// router.beforeEach((将要访问的页面路由, 从哪个页面跳转过来的, 代表放行函数)router.beforeEach((to, from, next) => {	// 如果用户访问的是登录页，直接放行；	if (to.path === '/login') return next();	// 从 sessionStorage 中获取到 保存的 token 值	const tokenStr = window.sessionStorage.getItem('token');	// 如果没有 token 值，强制跳转到登录页	if (!tokenStr) return next('/login');	// 如果有 token 值，放行；	next();})

export default router
